var calmode=-1;
var PickUp_Day,PickUp_Month,PickUp_Year,Return_Day,Return_Month,Return_Year;

function CalOver(obj,id) { obj.style.background="#0066CC"; obj.style.cursor="pointer"; document.getElementById(id).style.color="#FFFFFF"; }
function CalOut(obj,id,colorid)  { obj.style.background=""; obj.style.cursor=""; document.getElementById(id).style.color=colorid; }

function CallCalendar(FieldID)
  {
   var DATESP;
   if (document.rf.PickUpDate.value.length>0 && document.rf.PickUpDate.value!='ДД.ММ.ГГГГ') { DATESP = document.rf.PickUpDate.value.split("/"); PickUp_Day = DATESP[0]; PickUp_Month = DATESP[1]; PickUp_Year = DATESP[2]; }
   else { PickUp_Day=0; PickUp_Month=0; PickUp_Year=0; }
   if (document.rf.ReturnDate.value.length>0 && document.rf.ReturnDate.value!='ДД.ММ.ГГГГ') { DATESP = document.rf.ReturnDate.value.split("/"); Return_Day = DATESP[0]; Return_Month = DATESP[1]; Return_Year = DATESP[2]; }
   else { Return_Day=0; Return_Month=0; Return_Year=0; }

   calmode=FieldID;

   if (document.getElementById("CalBody").style.display=="block") { $("#CalBody").slideUp("fast"); } 
   else
     {
      if (FieldID==1)
        {
         document.getElementById("CalBody").style.top = parseInt(document.getElementById("PickUpDateField").offsetTop+26)+"px";
         if (CheckDate(1,PickUp_Month,PickUp_Year)) { DisplayCalendar(PickUp_Year,PickUp_Month); }
         else { DisplayCalendar(-1,-1); }
        }
      if (FieldID==2)
        {
         document.getElementById("CalBody").style.top = parseInt(document.getElementById("ReturnDateField").offsetTop+26)+"px";
         if (CheckDate(1,Return_Month,Return_Year)) { DisplayCalendar(Return_Year,Return_Month); }
         else if (CheckDate(1,PickUp_Month,PickUp_Year)) { DisplayCalendar(PickUp_Year,PickUp_Month); }
         else { DisplayCalendar(-1,-1); }
        }
     }
  }

function DisplayCalendar(CurrentYear, CurrentMonth)
  {
   var MStr = new Array("","януари","февруари","март","април","май","юни","юли","август","септември","октомври","ноември","декември");
   
   var TodayYear = 2010;
   var TodayMonth = 9;
   var TodayDay = 11;
   var NowDateStr = '9-11-2010';
   var CurDateStr = 0;
   var Color = '';
    
   if (CurrentYear==-1) { CurrentYear=TodayYear; } else { CurrentYear = parseInt(CurrentYear); }
   if (CurrentMonth==-1) { CurrentMonth=TodayMonth; } else { CurrentMonth = parseInt(CurrentMonth); }
 
   var now = new Date(CurrentYear,CurrentMonth-1,1);
   
   if (CurrentMonth==1) { PrevMonth = 12; PrevYear=CurrentYear-1; } else { PrevMonth=CurrentMonth-1; PrevYear = CurrentYear; }
   if (CurrentMonth==12) { NextMonth = 1; NextYear=CurrentYear+1; } else { NextMonth=CurrentMonth+1; NextYear = CurrentYear; }
   
   var d_mon = now.getMonth()+1;
   var wday = now.getDay();
   if (now.getDay()==0) { wday=7; }
    
        if (d_mon==1 || d_mon==3 || d_mon==5 || d_mon==7 || d_mon==8 || d_mon==10 || d_mon==12) { maxdays=31; }
   else if (d_mon==2) { maxdays=28; }
   else { maxdays=30; }

   var HeaderOutput = '';
   HeaderOutput += '<div align="center"><table cellspacing="0" cellpadding="0" border="0">';
   HeaderOutput += '<tr>';
   HeaderOutput += '<td><a href="javascript:DisplayCalendar(' + PrevYear + ','+PrevMonth+')"><img src="/images/elements/calendar/prev00.gif" border="0" width="25" height="24"></a></td>';
   HeaderOutput += '<td width="120"><div align="center" class="smalltxtA2" style="color:#FFFFFF"><b>' + MStr[d_mon] + ' ' +  CurrentYear + '</b></div></td>';
   HeaderOutput += '<td><a href="javascript:DisplayCalendar(' + NextYear + ','+NextMonth+')"><img src="/images/elements/calendar/next00.gif" border="0" width="25" height="24"></a></td>';
   HeaderOutput += '</tr></table></div>';
    
   i=1;
   var BodyOutput = '<table cellspacing="0" cellpadding="0" border="0" width="160" class="calstr2">';
   while (i<=maxdays)
     {
      BodyOutput += '<tr>';
      for (j=1; j<=7; j++)
         {
          if (i==1 && j<wday) { BodyOutput += '<td class="calstr1"><div class="regtxt" style="color:#006FAB"><b>&nbsp;</b></div></td>'; }
          else
            {
             if (i>maxdays && j<=7) { BodyOutput += '<td class="calstr1"><div class="regtxt" style="color:#006FAB"><b>&nbsp;</b></div></td>'; }
             else
               {
                CurDateStr = d_mon+'-'+i+'-'+CurrentYear;
                if (CompareDates(NowDateStr,CurDateStr)>0) { BodyOutput += '<td class="calstr1"><div class="strB1"><div class="regtxt" style="color:#999999;text-decoration:line-through;"><b>' + i + '</b></div></div></td>'; }
                else
                  {
                   if (j==6 || j==7) { Color='#CC0000'; } else { Color='#0044AA'; }
                   BodyOutput += '<td class="calstr1" onclick="javascript:SetDate('+CurrentYear+','+d_mon+','+i+','+ calmode +')" onmouseover="CalOver(this,\'CELL'+CurrentYear+d_mon+i+'\')" onmouseout="CalOut(this,\'CELL'+CurrentYear+d_mon+i+'\',\''+Color+'\')">';
                   BodyOutput += '<div class="strB1">';
                   BodyOutput += '<div class="smalltxtA2" style="color:'+Color+';" id="CELL'+CurrentYear+d_mon+i+'"><b>' + i + '</b></div>';
                   BodyOutput += '</div></td>';
                  }
                i++;
               }
            }
         }
      BodyOutput += '</tr>';       
     }
   BodyOutput += '</table>';

   var Line5px = '<img src="/images/blank.gif" border="0" width="5" height="5">';
    
   document.getElementById("CalBody").innerHTML = HeaderOutput + '<div class="callayoutmiddle">'+Line5px+'<div class="callayoutinner">' + BodyOutput + '</div>'+Line5px+'</div>';
   $("#CalBody").slideDown("fast");
  }
   
function SetDate(YYYY,MM,DD,FieldID)
   {
    if (MM<10) { MM = '0'+MM; }
    if (DD<10) { DD = '0'+DD; }
    if (FieldID==1) { document.rf.PickUpDate.value = DD+'/'+MM+'/'+YYYY; }
    else { document.rf.ReturnDate.value = DD+'/'+MM+'/'+YYYY; }
    $("#CalBody").slideUp("fast");
   }
   
function CompareDates(value1, value2)
  {
   var date1, date2;
   var month1, month2;
   var year1, year2;

   month1 = value1.substring (0, value1.indexOf ("-"));
   date1 = value1.substring (value1.indexOf ("-")+1, value1.lastIndexOf ("-"));
   year1 = value1.substring (value1.lastIndexOf ("-")+1, value1.length);
   month2 = value2.substring (0, value2.indexOf ("-"));
   date2 = value2.substring (value2.indexOf ("-")+1, value2.lastIndexOf ("-"));
   year2 = value2.substring (value2.lastIndexOf ("-")+1, value2.length);
     
   if (month1<10) { month1 = '0'+month1; }
   if (month2<10) { month2 = '0'+month2; }
   if (date1<10) { date1 = '0'+date1; }
   if (date2<10) { date2 = '0'+date2; }
   
   if (year1 > year2) return 1;
   else if (year1 < year2) return -1;
   else if (month1 > month2) return 1;
   else if (month1 < month2) return -1;
   else if (date1 > date2) return 1;
   else if (date1 < date2) return -1;
   else return 0;
  }
   
function CheckDate(day,month,year)
  {
   if (day.length==0 || month.length==0 || year.length==0) { return false; }
   day = parseInt(day); month = parseInt(month); year = parseInt(year);

   var leapyear = false;
   if ((Math.floor(year/4)== (year/4)) && ((Math.floor(year/100)!=(year/100)) || (Math.floor(year/400)==(year/400)))) { leapyear = true; }
   else { leapyear = false; }
  
   if (leapyear && month=='02' && day>29) { return false; }
   else if (!leapyear && month=='02' && day>28) { return false; }
   else if (day>30 && (month=='04' || month=='06' || month=='09' || month=='11'))  { return false; }
   else if (day>31) { return false; }
   
   if (year<2008 || year>2099) { return false; }

   return true;
  }
  
function MaxDays(month,year)
  {
   if (month=='02')
     {
      var leapyear = false;
      if ((Math.floor(year/4)== (year/4)) && ((Math.floor(year/100)!=(year/100)) || (Math.floor(year/400)==(year/400)))) { leapyear = true; }
      else { leapyear = false; }
      if (leapyear) { return 29; }
      else { return 28; }
     }
   else if (month=='01' || month=='03' || month=='05' || month=='07' || month=='08' || month=='10' || month=='12') { return 31; }
   else { return 30; }
  }